Tempo signal for synchronizers



Synchromzmg A Pparcdus.

' 1,479,425 H. BOCKISCH TEMPO SIGNAL FOR SYNCHRONIZERS Filed April 21[1920 FASTER SLOWER @1 3 I gwue/wfo'r,

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Patented Jan. 1, 1924.

UNITED STATES 1,479,425 PATENT OFFICE.

HEINRICH BOCKISCH. DECEASED, LATE OF POUGHKEEPSIE, NEW YORK; BY GEORGEW. GITTINS, ADMINISTRATOR, OF NEXV YORK, N. Y., ASSIGNOR TO WELTE-MIGNONCORPORATION, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

TEMPO SIGNAL FOR SYNCHRONIZERS.

Application filed April 21, 1920. Serial No. 375,578.

T (all whom it may concern.

Be it known that HnrNRioH Boonisori, deceased, late a citizen of theRepublic of Czechoslovakia, and formerly residing at loughkeepsie, inthe county of Dutchess and State of New York, United States of America,invented certain new and useful Improvements in Tempo Signals forSynchronizers, of which the following is a speci- 19 fication.

This invention relates to synchronizers and signals to indicate relativespeed of parts. An exemplification of a synchronizer to which thisinvention may be applied is shown in the inventors prior Patent#1,279,6t0, September 24;, 1918.

The primary object of this invention is the provision of means forsignalling the opera tor when the hand speed control means, of one ofthe devices to be synchronized, has been set in a position to operatethe same too fast or too slow to be controlled etiiciently by thesynchronizer.

This invention is carried out when for example, it is applied to asynchronizer for an automatic musical. instrument and a phonograph, bythe provision of connections to the acceleration and retarding deviceswhereby a signal will be given when one actuates abnormally fast, thusindicating that the device giving the signal is being overtaXed and thatthe general controlling device should be set for a slower or fasterspeed as the case may be.

Referring to the drawings Figure 1 is a diagrammatic view of theindicating signal device.

Fig. 2 is a plan view of a speed control device showing signals mountedadjacent thereto.

Like reference characters refer to similar parts in the different views.

In this specification the invention will be described as applied to asynchronizer for controlling the relative speeds between an automaticpiano and a phonograph, although it may be applied to other devices.

10 designates the rail of an automatic musical instrument as a piano, 11the controlling handle for regulating the speed? when not using thesynchronizer and for setting the general speed controlling devices sothat the synchronizer may operate to control the relative speed of thetwo devices. 12

and 12 are signals which in the illustrated embodiment are smallelectric lights which show through the openings 13, 13 of the plate 14mounted on the rail 10 and over the recess 15. The electric lights 12,12 are mounted in the recess 15 and have suitable connections to abattery 16. In the circuit of the lamp 12 is a contact switch 17controlled by a suitably actuated pneumatic 93, and in the circuit ofthe lamp 12' is a con tact switch 18 controlled by the pneumatic 95.

The movable board of the bellows 93 carries a contact bridging element97 and the movable board of the bellows 95 carries a contact bridgingelement 98. These elements whenoperated by the respective bellows 93 and95, open and close circuits which cause mechanism to operate and slowdown or speed up the automatic musical instrument.

Let us assume that when the pneumatic 93 is actuated it tends to slowdown the speed of the automatic musical instrument and that when thepneumatic 95 is operated it tends to speed up the automatic musicalinstrument. The pneumatics 93 and 95 have respectively contact makingmembers 93 and 95 which cause the switches 17 and 18 to operaterespectively.

Suppose the controlling handle 11 is left too far toward one side sothat the synchronizing mechanism is unable to quickly operate the speedcontrol devices to synchronize the movements of the two devices. lVhilcthe control pneumatic 95 is unable to speed up the piano fast enough, itoperates up and down very fast, each time closing the switch 18 andlighting the lamp 12. The circuit for the lamp is made as follows: Fromthe positive side of the battery 16 by wires a, I), switch 18, wire 0.lamp 12'. bus bar d, wire a to battery 16. This flashing of the lamp 12indicates to the operator that he should move the handle 11 in thedirection of faster until the lamps alternate in flashes.

In case the control handle 11. is left too far toward the otherextremity, the slowing down pneumatic 93 will operate and by its contactmaking member 93 operate the switch 17 to flash the lamp 12. The circuitto the lamp 12 is made as follows: From the battery 16 by wires a, I),switch 17, wire 0 to lamp 12, bus bar d, wire 6 to battery 16. Thisflashing of the lamp 12 indicates that the control handle 11 should bemoved in the direction of slower until the lamps flash alternately Whichis the indication that the proper point has been reached.

It prompt action is not taken in adjusting the speed control (tempo)device the synchronism will be incorrect and a new start Will benecessary. By this invention it .is clear that the readjustment may hequickly made and much time and inconvenience can be saved.

While this invention has been described in connection with a particularform of synchronizer it will be clear that it is equally adaptable toother synchronizers having movable parts to respectively cause relativeslower and faster movements of the devices to be synchronized.

It is equally clear that modifications and changes may bemade vithin thespirit of the invention and the scope of the appendee claims.

Having described my invention, what I claim is 1. An attachment for asynchronizer having a speeding-up member and a slowing-- downmember,comprising signal opcr atively connected to the speeding-upmemher and another signal operatively connected to theslowing-downmember.

2. An attachment for a synchronizer having' a speedingaip member and aslowin down member, comprising signals 01 ratively electricallyconnected respectively to the speedin'gnp and slowing-down n'ieinbers.

An attachment for a synchronizer having a weeding-up member and aslowingdown member, comprising a switch operated by the speeding-upmember, a switch operated by the slowing-down member, 5 n

electrically connected to each of the se. itches and a source or"electrical energy in tlie circuit with the switches and signals to opcrate the latter upon operation of the former.

l. In combination, a synchronizer having means for speeding tip andmeans for slow- (town one ot the parts to h synchronized, signals,connections between the signal means and the speeding-up and slowingdown means whereby the 'lfornjier are operated respectively from thelatter.

5. In combination the tempo lever of a record 'co'ntroi e0 musicalinstrument to .be synchronized with another device, speedi andslow-"downmechanisms ot' a synchronizer, signals adjac nt the tempo nalcontrol connections between the re tiv signals and the speed-up and sitsdown mechanism whereby the position to which the tempo lever snonld bemoved is indicated by the operation of the signals by the respectivespeed change mechanisms.

6. In combination the tempo lever of a record controlled musicalinstrume t to he synchronized with another device, speednp and slow-downmechanisms of a synchronizer, signals adjacent the tempo lever, nal coni'ol connections between the respective signals and the speed-rip andslow-down mechanism whereby the position to which the tempo lever shouldbe moved is indicated by the operation or the si s by the respectivespeed change n'iec hanisins.

In testimony whereof, I atiiz; my signature.

GEO. W. GITTENS, Administrator of the estate 0 H6271? r5072 Bockisoh,iiwe-ntor, deceased.

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